Skip to main content

Health Encyclopedia

Search the Health Encyclopedia

CMV pneumonia

Definition

Cytomegalovirus (CMV) pneumonia is an infection of the lungs that can occur in people who have a suppressed immune system.

Alternative Names

Pneumonia - cytomegalovirus; Cytomegalovirus pneumonia; Viral pneumonia

Causes

CMV pneumonia is caused by a member of a group of herpes-type viruses. Infection with CMV is very common. Most people are exposed to CMV in their lifetime, but typically only those with weakened immune systems become ill from CMV infection.

Serious CMV infections can occur in people with weakened immune systems as a result of:

In people who have had organ and bone marrow transplants, the risk of infection is greatest 5 to 13 weeks after the transplant.

Symptoms

In otherwise healthy people, CMV usually produces no symptoms, or it produces a temporary mononucleosis-type illness. However, those with a weakened immune system can develop serious symptoms. Symptoms may include:

  • Cough
  • Fatigue
  • Fever
  • General discomfort, uneasiness, or ill feeling (malaise)
  • Loss of appetite
  • Muscle aches or joint pains
  • Shortness of breath
  • Sweating, excessive (night sweats)

Exams and Tests

The doctor or nurse will perform a physical exam. In addition, the following tests may be done:

Treatment

The goal of treatment is to use antiviral drugs to stop the virus from copying itself in the body. Some people with CMV pneumonia need IV (intravenous) medicines. Some people may need oxygen therapy and breathing support with a ventilator to maintain oxygen until the infection is brought under control.

Outlook (Prognosis)

Antiviral drugs stop the virus from copying itself, but do not destroy it. The CMV suppresses the immune system, and may increase your risk of other infections.

Low oxygen levels in the blood in people with CMV pneumonia often predicts death, especially in those who need to be placed on a breathing machine.

Possible Complications

Complications of CMV infection in people with HIV/AIDS include spread of disease to other parts of the body, such as the esophagus, intestine, or eye.

Complications of CMV pneumonia include:

  • Kidney impairment (from drugs used to treat the condition)
  • Low white blood cell count (from drugs used to treat the condition)
  • Overwhelming infection that doesn't respond to treatment
  • Return of CMV infections (may be due to the virus becoming resistant to the antiviral drug)

When to Contact a Medical Professional

Call your health care provider if you have symptoms of CMV pneumonia.

Prevention

The following have been shown to help prevent CMV pneumonia in certain people:

  • Using organ transplant donors who don't have CMV
  • Using CMV-negative blood products for transfusion
  • Using CMV-immune globulin in certain people

Preventing HIV/AIDS avoids certain other diseases, including CMV, that can occur in people who have a weakened immune system.

References

Crothers K, Morris A, Huang L. Pulmonary complications of HIV infection. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine. 6th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 90.

Crumpacker CS. Cytomegalovirus (CMV). In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 8th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 140.

Madtes DK. Pulmonary complications of stem cell and solid organ transplantation. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine. 6th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 91.

Review Date:12/10/2015
Reviewed By:Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital, Boston, MA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997-A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

adam.com

The Agency for Health Care Administration (Agency) and this website do not claim the information on, or referred to by, this site is error free. This site may include links to websites of other government agencies or private groups. Our Agency and this website do not control such sites and are not responsible for their content. Reference to or links to any other group, product, service, or information does not mean our Agency or this website approves of that group, product, service, or information.

Additionally, while health information provided through this website may be a valuable resource for the public, it is not designed to offer medical advice. Talk with your doctor about medical care questions you may have.

Health
Outcome Data

Hospitalizations, length of stay, charges, and readmission rate for Pneumonia


Hospitalizations, length of stay, and charges for Pneumonia, Other - Ages 2-17 years


Health Encyclopedia

More Features

We Appreciate Your Feedback!
1. Did you find this information useful?
         Yes
         No
2. Would you recommend this website to family and friends?
         Yes
         No